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ilk a kind, family, or group.
I'll contracted form of "I will".
ill not in normal health; unwell; sick. [11 definitions]
ill. abbreviation of "illustrated" or "illustration."
ill-advised entered into without sufficient counsel or deliberation; unwise.
ill at ease emotionally uncomfortable; uneasy.
ill-bred characterized by a lack of good manners; rude.
ill-conceived poorly planned or thought out.
ill-considered done without due consideration; imprudent or unwise.
ill-disposed not favorable or receptive; hostile. [2 definitions]
illegal contrary to law, rules, or the like; unlawful. [2 definitions]
illegible difficult or impossible to read or decipher.
illegitimate not legitimate; unlawful. [6 definitions]
ill fame unfavorable reputation or name.
ill-fated fated to come to a bad end; doomed. [2 definitions]
ill-favored unattractive in appearance; ugly. [2 definitions]
ill-founded having little or no basis in fact or reason.
ill-gotten obtained by dishonest or evil means.
ill humor an unpleasant or irritable mood; disagreeableness.
illiberal lacking tolerance; bigoted.
illicit not permitted by custom or law; illegitimate.